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Öğe Antibacterial and mechanical properties of propolis added to glass ionomer cement(E H Angle Education Research Foundation, Inc, 2014) Hatunoglu, Erdem; Ozturk, Firat; Bilenler, Tugca; Aksakalli, Sertac; Simsek, NeslihanObjective: To investigate whether adding ethanolic extracts of propolis (EEP) might influence the antibacterial and mechanical (shear-peel band strength [SPBS]) properties of conventional glass ionomer cement (GIC) used in orthodontic band cementation. Materials and Methods: The cement was divided into four groups: one using the original composition and three with 10%, 25%, and 50% EEP added to the liquid and then manipulated. An antimicrobial assay, broth-dilution method was used to determine the antibacterial capacity of the GIC containing EEP. Eighty teeth were used for the mechanical assay, and an lnstron testing machine was used to evaluate the SPBS. Kolmogorov-Smirnov and Kruskal-Wallis tests were used for statistical analyses. Results: GIC with the addition of 25% and 50% EEP activated inhibition of Streptococcus mutans (ATCC 25175) growth, but this effect did not occur in the group to which 10% EEP was added or in the control GIC group. There was no significant difference between the groups in terms of SPBS (P > .05). Conclusions: The addition of EEP may increase antibacterial properties without negatively modifying the mechanical properties of conventional GIC.Öğe Antibacterial Effects of Fluoride-Releasing Orthodontic Composites: A Pilot Study(Aves Press Ltd, 2011) Ozturk, Firat; Toy, Ebubekir; Arslan, Ugur; Hatunoglu, ErdemAim: The purpose of this study was to evaluate the antibacterial effects of 3 different fluoride-releasing orthodontic composites using a direct contact test (DCT). Materials and Methods: The antibacterial properties of fluoride releasing orthodontic composites were evaluated with the DCT. For the DCT, wells (n=8) of 96-microtitre plates were coated with the tested bonding adhesives [Transbond Plus (3M Unitek, Monrovia, USA) Light Bond (Reliance Ortho Prod. Inc. Itasca, IL, USA) Kurasper F (Kuraray Medical Inc. Okayama, Japan)]. Kalzinol (Zinc-Oxide Eugenol Cement) (Dentsply, Konstanz, Germany was used as a positive control material. A Streptococcus mutans suspension was placed on the surface of each specimen for 1 hour at 37 degrees C. Bacterial growth was monitored for 16 hours with a temperature-controlled microplate spectrophotometer. The kinetics of the outgrowth in each well was recorded continuously at 650 nm every 30 minutes. The data were analyzed by one-way ANOVA, as well as by Tamhane's T2 multiple comparison test. The level of significance was determined as P < 0.05. Results: The evaluation of the results of the DCT revealed that there were statistically significant differences between the four groups (F=156,951, P=0.000). The control material (Kalzinol) showed complete inhibition of bacterial growth (mean 0.01 +/- 0.05). The multiple comparison test indicated that there were no significant difference in bacterial growth between Kalzinol and Transbond Plus (mean 0.12 +/- 0.17) (P=0.509).. Kurasper F (mean 0.73 +/- 0.06) and Light Bond (mean 0.85 +/- 0.02) showed statistically significant differences (P=0.000) compared to Kalzinol. Conclusion: Transbond Plus showed marked antibacterial effects.Öğe Micro-CT evaluation of microleakage under orthodontic ceramic brackets bonded with different bonding techniques and adhesives(Oxford Univ Press, 2016) Ozturk, Firat; Ersoz, Mustafa; Ozturk, Seyit Ahmet; Hatunoglu, Erdem; Malkoc, SiddikThe aim of this study was to evaluate microleakage under orthodontic ceramic brackets bonded with direct and different indirect bonding techniques and adhesives using micro-computed tomography. A total of 30 human maxillary premolars were randomly separated into five groups with six teeth in each group. In group I, teeth were bonded directly with Transbond XT (3M Unitek). In group II, group III, group IV, and group V, teeth were bonded through an indirect technique with Custom I.Q. (Reliance Orthodontic Products), Sondhi Rapid-Set (3M Unitek), RMbond (RMO), and Transbond IDB (3M Unitek), respectively, following the manufacturer's instructions. Micro-CT system model 1172 of Skyscan (Kontich, Belgium) was used to scan all samples. NRecon (Skyscan) version 1.6, CT-Analyser V.1.11 (Skyscan), and TView (SkyScan, Bvba) software programs were used for microleakage evaluation. Microleakage values between the test groups were assessed using the Kruskal-Wallis test, while the Wilcoxon signed rank test was used for within-group comparisons. The level of significance was set at P < 0.05. According to the Kruskal-Wallis analysis of variance test, there were no significant differences among the tested groups, with regard to volume and percentage (microleakage/region of interest x 100) of microleakage values (P < 0.05). The Wilcoxon signed rank test showed that coronal microleakage volume and percentage values significantly differed for RMbond and Transbond IDB groups. In the study, only ceramic brackets were used and microleakage into mini gaps did not show up on the micro-CT image because 50% silver nitrate solution could not penetrate into mini gaps which are smaller than silver nitrate particles. Use of direct and indirect bonding techniques with different adhesives did not significantly affect the amount of microleakage.Öğe Nasoalveolar Molding Treatment for a Patient With Amniotic Band Syndrome: A Case Report(Aves, 2014) Ozturk, Firat; Hatunoglu, Erdem; Altun, OguzhanAmniotic band syndrome (ABS) is an uncommon congenital malformation characterized by clubfoot deformity, hand and finger anomalies, and cleft lip and palate. In this study, the literature about ABS-possible etiology, treatment protocols, and medical procedures-is discussed. The aim of this study was to evaluate efficiency of nasoalveolar molding therapy for a patient with cleft lip and palate and ABS. Changes were evaluated before, during, and after the treatment period using a three-dimensional surface imaging system.Öğe Unusual bifid crista galli in a patient with cleft lip and palate(Springer, 2017) Dedeoglu, Numan; Altun, Oguzhan; Kucuk, Eyup Burak; Altindis, Sedat; Hatunoglu, ErdemOne of the most common craniofacial malformations observed in newborn babies is cleft lip and palate (CLP). This syndrome presents with some anatomic variations. The aim of this study was to understand an anatomic variation of the crista galli that had not been reported previously in patients with CLP. A 17-year-old boy with CLP was referred to an orthodontic clinic for cone-beam computed tomography (CBCT) imaging before treatment. Axial and coronal sections and three-dimensional images showed that the crista galli had bifid heads that were attached to each other. Incomplete ossification had resulted in a bifid crista galli and the appearance of a suture in the anterior coronal section of the CBCT images. This anatomic variation could allow penetration of the anterior fossa during endoscopic surgery, which could be dangerous for the patient.
